Seat back



Patented June 2, 1925.

PATENT OFFICE.

' ALBERT LB. GLASER, or DAYTON, 01110.

SEAT BACK.

Application filed March 21, 1924. Serial No. 700,834.

To all whom it may concern:

Be it known that I, ALBERT B. GLASER, a citizen of the United States, residing at Dayton, in the count of Montgomery and 5 State of Ohio, have invented new and useful Improvements in Seat Backs, of which the following is a specification.

My invention relates to improvements in portable seat backs or portable ba'ck' supports to be used on the seats of boats, on a bench, or on the type of seats that are commonly known as bleachers. One of the objects of my invention is to produce a back support which is easily attached to a seat of the kind referred to, or removed therefrom. Another object is to provide a back that may be folded and conveniently carried or stored away. I shall describe my invention by referring to the accompanying drawings,

3 in which: m

Fig. 1 shows the portable seat back attached to a bench; and

Fig. 2 shows the rods of the portable seat back folded to lie in the'plane of the back.

Referring now to Fig. 1, the horizontal rods 10 lie across the seat 11 and are provided with hooks 12 to embrace the front edge of the seat. At their rear ends the rods 10 are bent to form uprights'13. The upri hts pass thru holes in the ends of 2. W00 en link 14 and are held in the proper position thereby,.the link being situated at the base of the uprights and resting on the rods 10. A piece of canvas or other suitable fabric is hemmed on two opposite edges,

forming pipes adapted to slip over the uprights to form a flexible seat back.

It is not necessary that the rods 10 lie parallcl to each other across the seat, as they may be placed in converging or diverging relationship, or even in parallelism but oblique with reference to the front edge of the seat, as required'by the local condition obtaining where it is desired to attach the back. This adaptability is due to the'fact thatthe uprights 13 may be rotated in the link 14, even to the extent of crossing the rods 10 as shown in Fig. 2, when it is desired to transport or store the back.

Since the uprights 13 are rigidly connect ed and supported at their lower ends by the link 14, while the remainder of their length is free standing, the uprights are enabled to yield to lateral strains, the resiliency of the material of which they are made restoring them to their original position after the strains are removed. When the person occupying the seat leans against the'canvas the strains spring the uprights toward each other and slightly backward, which supple-f merits the elasticity of the canvas and enables 'it to conform to the back of the occu pant of the seat. Should the uprights become set in a position inclining toward each other after considerable use they may be reversed, by rotating each upright 180 degrees in the link, thereby putting more tension on the canvas. s

When desirable the canvasback may be removed by slipping it off of the uprights and laundered, and, as is obvious, the frame may be disassembled in a moment by withilrziiwing the uprights from the holes in the While I have described what I consider round rods'lying across the seat terminating in hooks at one end that embrace the front edge of the seat and at the other end terminating in free standinguprights; a

wooden link, having holes adapted to slip.

over the uprights to hold them in an erect position and at a certain distance apart; a piece of fabric attached to and extending from one upright to the other adapted to serve as a back.

2. A portable seat back comprising two round rods lying across the seat terminating in hooks at one end that embrace the front edge of the seat and at the other end terminating in uprights; a wooden link having holes adapted to slip oventheuprights to hold them in an erect position and at a cer tain distance apart; a piece of fabric having pipes formed on two opposite edges adapted to slip over the uprights thereby forming a back to the seat.

3. A portable seat back comprising two members lying across the seat and terminating in hooks which embrace the front edge thereof, said members bending upward at or near the rear edge of the seat to form free standing uprights, which at their lower por tions pass through holes in a spacer whereby the uprights are sustained and kept at a fixed distance apart,the uprights being revoluble in the spacer so said members can he swung into the plane of the spacer and uprights, thereby folding the entire apparatus into a compact fiat body, and a member extending from one upright to the other, forming a back rest for the occupant of the seat.

- ALBERT GLASEB. 

